pull the dead growth, let your pots dry out nice and good up to 2, 2 1/2 inches deep
, and give them water (p.h.ed at 6.7) from a wand or watering can that aerates the water really well, so approximately 5-10% of the volume of water going into the pot drains out..... measure ph, and TDS ppm if possible, of your runoff..... my guess is you throw in water phed at 6.7, it will come out 6.2-6.4 (ppm of approx 150-300 depending on what it is going in)....... your in the coco gold right...... all of this advice is based on that..... sorry I haven't been through for a couple days, I been busy
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if your ppm comes out lower than 200, I would soak in an additional LIGHT feeding of 200 ppm (approximately 1/4 str GIG)